{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Since 1985 , when Heyliger et al . , first demonstrated a serendipitous discovery that oral administration of 0 . 8 mg / ml of sodium orthovanadate in drinking water to streptozotocin - induced diabetic rats resulted in normoglycemia , numerous extensive studies have been pursued on the anti - diabetic and insulinomimetic actions of vanadium ."}
{"Chemical": ["sodium orthovanadate", "streptozotocin", "vanadium"]}